Bajcsy, MHofferberth, SebastianBalic, VPeyronel, THafezi, MohammadZibrov, AlexanderVuletic, VLukin, Mikhail2011-11-152009Bajcsy, M., Sebastian Hofferberth, V. Balic, T. Peyronel, Mohammad Hafezim, Alexander S. Zibrov, V. Vuletic, and Mikhail D. Lukin. 2009. Efficient all-optical switching using slow light within a hollow fiber. Physical Review Letters 102(20): 203902.0031-9007http://nrs.harvard.edu/urn-3:HUL.InstRepos:5345665We demonstrate a fiber-optical switch that is activated at tiny energies corresponding to a few hundred optical photons per pulse. This is achieved by simultaneously confining both photons and a small lasercooled ensemble of atoms inside the microscopic hollow core of a single-mode photonic-crystal fiber and using quantum optical techniques for generating slow light propagation and large nonlinear interaction between light beams.en-USJournal Article2011-11-1510.1103/PhysRevLett.102.203902